Goodwill Goodwill (Tables)

3 Months Ended

Mar. 31, 2012

Disclosure - Goodwill - Additional Information [Abstract]

Carrying value of goodwill by reporting segment and the activity

The carrying value of goodwill by reporting segment and the activity for the three months ended March 31, 2012 are as follows (in thousands):

	Thermal Vision and Measurement		Raymarine		Surveillance		Detection		Integrated Systems		Total
Balance, December 31, 2011	$	251,187	$	98,364	$	90,501	$	38,162	$	20,129	$	498,343
Currency translation adjustments	2,250		2,129		229		—		—		4,608
Balance, March 31, 2012	$	253,437	$	100,493	$	90,730	$	38,162	$	20,129	$	502,951